Practical problems in real world implementation are that information that goes against our extant beliefs, including ones that are based on past limited exposure and religious or political beliefs, is handled as “extraordinary” and as “inconsistent”, and that many mainstream sources are now presumed by many across the beliefs spectrum as not “credible” sources. IOW: confirmation bias coupled with lack of trust in previously trusted institutions.
Thinking back on my education I don’t think I was taught much critical thinking by educators until college. My dad drilled it into me just watching television together but teachers? Nah. Okay I’ll grant proofs in Geometry class, but that was it. And a couple of teachers didn’t teach it per se but at least encouraged it. (I owe much of love of science to an early science teacher who did not shoot down my question to the statement that heat is invisible with asking “Then what am I seeing with the waviness over pavement on a hot day then?” He actually got back with the answer the next day!) Others though handled critical thinking questions as our being smart asses.
And in college it was not in any classes, which emphasized facts memorization/regurgitation and some skills, in communication, and in solving specific sorts of problems (e.g.organic chem).
Actual critical thinking, generating alternative hypotheses, questioning if the conclusion suggested was justified by the evidence available, and being especially aware of critically evaluating evidence that supported your preferred conclusion, being on guard to your biases, trying to take the position of trying to prove your current beliefs incorrect, those were taught by a professor whose lab I was a volunteer scut monkey in. Not in a class.
Let’s be real. This board has a selection bias to those who value critical analysis and often critical thinking here is not so impressive.
And a person who considers a meteorologist discussing climate change as worthy of being threatened? They consider human induced climate change as an extraordinary claim, consider “lamestream media” and elite intellectuals as not credible (and consider their particular social media feeds and family/associate statement as more credible); and hear their own beliefs widespread and consistently within their own circles.
They are actually using those four metrics.